Watch List notes:

COMMEMORATIVE MEDALS, BRITISH MEDALS, Corporation of London Medals, City of London School, New Buildings opened by the Prince and Princess of Wales, Copper Medal, 1882, by J S & A B Wyon, for the City of London Series, conjoined busts of the Prince and Princess to right, rev detailed façade of the school buildings, 77mm, in case of issue (BHM 3133; Eimer 1690; Welch 18; JT 202a). Virtually mint state, case lacks left side.
only 400 specimens struck

Estimate: £200-250